Increasing Severity of Oligohydramnios: A Risk Factor for Outcome

AF provides the fetus a protective environment suitable for growth and development (oligohydramnios is defined as when deepest vertical pool is less than 8 cm). Its volume is controlled by dynamic interaction among the fetal placenta and maternal compartment, throughout normal pregnancy AF allows the fetus room for growth, movement and development. In oligohydramnios this equilibrium shifts. AFI is determined by directly measuring the vertical pocket (free of any fetal part) in four quadrants of abdomen in pregnant woman.